Finding the Fourth Proportional to 1,654.32, 2,481.72 and 787.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.32 : 2,481.72 = 787.92 : x
2. Step 2: Convert to fraction form
   1,654.32/2,481.72 = 787.92/x
3. Step 3: Cross multiply
   1,654.32x = 2,481.72 × 787.92
4. Step 4: Simplify right side
   1,654.32x = 1,955,396.82
5. Step 5: Solve for x
   x = 1,955,396.82/1,654.32
6. Step 6: Final answer
   x = 1,181.99